--- upgrade: - | The default Mnesia ``dump_log_write_threshold`` value has changed to ``300`` instead of ``100`` for efficiency. ``dump_log_write_threshold`` specifies the maximum number of writes allowed to the transaction log before a new dump of the log is performed. Increasing this value can increase the performances during the queues/exchanges/bindings creation/destroying. The values should be between 100 and 1000. More detail [1]. [1] http://erlang.org/doc/man/mnesia.html#dump_log_write_threshold